历史地震研究几乎全部取材于史料，而方志中的地震记载又占了地震史料的绝大部份。
All study of historical earthquake is almost obtained from various historical materials, and earthquake records in local records hold most of historical earthquake materials.
史料记载表明安徽地区历史地震以中强震为主，最高震级为M614级。
Historical earthquake records show that most historical earthquakes in Anhui area are medium-strong earthquakes, the largest magnitude of them is M614.
而笔者结合其他史料统计，排序情况为旱灾、雹灾、水灾和地震，排在前三位的均是农业灾害。
The author carried out statistics in conjunction with other historical data, disasters descending order as drought, hail, floods and earthquakes, the top three were agricultural disaster.
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